The top aftermarket NYSE losers Monday were: Red Hat, Polypore International, Primus Guaranty, Complete Production Services, LDK Solar Co, Talisman Energy, SeaBright Holdings, Ashford Hospitality Trust, Blount International and MEMC Electronic Materials.

Red Hat, Inc. (NYSE:RHT) shares slumped 8.66 percent to $42.06 in post market trading session. The company reported third quarter net income of $38.2 million or $0.19 per share compared to $26.0 million or $0.13 per share in the same quarter a year earlier.

Revenue rose to $290.03 million from $235.58 million in the same period a year-ago, while analysts' expect the company to report revenue of $289.62 million for the third quarter.

Polypore International Inc. (NYSE:PPO) shares declined 3.67 percent to $42.29 in aftermarket trading session. The stock has a 52-week low of $39.45, a 52-week high of $74.21 and $2.04 billion in market capitalization.

Primus Guaranty, LTD. (NYSE:PRS) shares declined 3.13 percent to $4.34 in aftermarket trading session. The company stock slumped nearly 20 percent in regular trading session.

Complete Production Services, Inc. (NYSE:CPX) shares declined 3.1 percent to $31.30 in post market trading session.

LDK Solar Co. Ltd. (NYSE:LDK) shares declined 3.03 percent to $4.8 in aftermarket trading session. The company stock surged more than 11 percent in regular trading session.

Talisman Energy Inc. (NYSE:TLM) shares declined 2.57 percent to $11.01 in post market trading session. The stock has a 52-week low of $10.75, a 52-week high of $25.21 and $11.55 billion in market capitalization.

SeaBright Holdings, Inc. (NYSE:SBX) shares declined 2.08 percent to $7.05 in aftermarket trading session.

Ashford Hospitality Trust Inc. (NYSE:AHT) shares declined 2.05 percent to $7.64 in aftermarket trading session.

Blount International, Inc. (NYSE:BLT) shares declined 1.69 percent to $14.4 in post market trading session. The stock has a 52-week low of $12.46, a 52-week high of $18.62 and $701.70 million in market capitalization.

MEMC Electronic Materials, Inc. (NYSE:WFR) shares declined 1.6 percent to $3.68 in aftermarket trading session.